<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			*{
				margin: 0;
				padding: 0;
			}
			div{
				width: 200px;
				height: 200px;
				/* background-color: red; */
				padding-left: 10px;
				padding-right: 20px;
				/* 同时设置4个方向，按照上右下左的顺序 */
				padding: 30px 40px /* 25px 34px */;
				border: 5px solid green;
				border-top: 10px dashed yellow;
				border-right-style: dotted;
				margin: 20px 30px;
			}
		</style>
	</head>
	<body>
		<div></div>
		<div></div>
	</body>
</html>
